CONVERTING SOURCE CODE

• US 20170262265A1
• Filed: 03/10/2016
• Published: 09/14/2017
• Est. Priority Date: 03/10/2016
• Status: Active Grant

• Current Assignee: Wowza Media Systems LLC
• Original Assignee: Wowza Media Systems LLC
• Inventors: Kellicker, Scott, Borgersen, Jan
• Granted Patent: US 10,140,105 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 8/51 Source to source

Abstract

A method includes receiving source code in a first programming language. The method further includes identifying a design pattern based on a flag included in the source code. The method further includes generating a first translation of the source code in a second programming language, where at least a portion of the second file conforms to the design pattern. The method further includes generating a second translation of the source code in a third programming language. The method further includes outputting first data based on the first translation to a first device and second data based on the second translation to a second device.

Claims

1. A method comprising:

receiving, at a computing device configured to execute a first converter and a second converter, source code in a first programming language, the source code including a flag associated with translating the source code from the first programming language into one or more other programming languages, the flag indicating a design pattern;

translating the source code by the first converter to generate a first translation of the source code in a second programming language, wherein, responsive to detecting the flag in the source code, the first converter conforms at least a portion of the first translation to the design pattern;

translating the source code by the second converter to generate a second translation of the source code in a third programming language, wherein, responsive to detecting the flag in the source code, the second converter conforms at least a portion of the second translation to the design pattern;

outputting the first translation to a first device; and

outputting the second translation to a second device.

2. The method of claim 1 wherein the design pattern corresponds to a prototype pattern, a revealing prototype pattern, a revealing module pattern, or a combination thereof.

3. The method of claim 1, further comprising:

generating an abstract syntax tree based on the source code; and

based on the abstract syntax tree, populating a registry with information describing classes, interfaces, methods, fields, or any combination thereof, included in or related to the source code.

4. The method of claim 3, wherein the first translation and the second translation are generated further based on the abstract syntax tree, and wherein the second programming language is different from the third programming language.

5. The method of claim 4, wherein generating the first translation includes:

visiting each node of the abstract syntax tree using a visitor pattern; and

processing one or more visited nodes based on the flag to generate the first translation.

6. The method of claim 1, further comprising:

identifying a second flag in the source code;

identifying a unit test portion of the source code based on the second flag, the unit test portion including first unit tests in the first programming language; and

generating second unit tests in the third programming language that correspond to the first unit tests, the second unit tests associated with the second translation.

7. The method of claim 1, further comprising performing static code analysis at the computing device to determine whether the source code, the first translation, the second translation, or a combination thereof, includes an error.

8. The method of claim 7, further comprising outputting, to a display, indications of at least one error detected by the static code analysis.

9. An apparatus comprising:

a memory storing instructions;

a processor configured to execute the instructions to;

receive source code in a first programming language;

identify a design pattern based on a flag included in the source code, the flag configured associated with translating the source code from the first programming language into one or more other programming languages;

generate, by a first converter, a first translation of the source code in a second programming language, wherein, responsive to detecting the flag in the source code, the first converter conforms at least a portion of the first translation to the design pattern; and

generate a second translation of the source code in a third programming language; and

a communication interface to;

output first data based on the first translation to a first device; and

output second data based on the second translation to a second device.

10. The apparatus of claim 9, wherein the design pattern corresponds to a prototype pattern, a revealing prototype pattern, a revealing module pattern, or a combination thereof.

11. The apparatus of claim 9, wherein the processor is further configured to execute the instructions to:

generate an abstract syntax tree based on the source code; and

based on the abstract syntax tree, populate a registry with information describing classes, interfaces, methods, fields, or any combination thereof, included in or related to the source code.

12. The apparatus of claim 11, wherein the first translation and the second translation are generated based on the abstract syntax tree, and wherein the source code includes multiple flags, the multiple flags including the flag.

13. A non-transitory computer-readable storage device storing instructions that, when executed by a processor, cause the processor to perform operations comprising:

receiving source code in a first programming language;

identifying a design pattern based on a flag converter directive included in the source code, the converter directive specifying the design pattern by name;

generating, by a first converter, a first translation of the source code in a second programming language, wherein, responsive to identifying the converter directive in the source code, at least a portion of source code instructions of the first translation generated by the first converter conform to the design pattern;

generating, by a second converter, a second translation of the source code into a third programming language, wherein, responsive to identifying the converter directive in the source code, at least a portion of source code instructions of the second translation generated by the second converter conform to the design pattern;

initiating output of first data based on the first translation to a first device; and

initiating output of second data based on the second translation to a second device.

14. The non-transitory computer-readable storage device of claim 13, wherein the design pattern corresponds to a prototype pattern, a revealing prototype pattern, a revealing module pattern, or a combination thereof, and wherein the second data is excluded from the first data sent to the first device.

15. The non-transitory computer-readable storage device of claim 13, wherein the operations further include:

generating an abstract syntax tree based on the source code, the source code including multiple flags, wherein the multiple flags include the flag; and

based on the abstract syntax tree, populating a registry with information describing classes, interfaces, methods, fields, or any combination thereof, included in or related to the source code.

16. The non-transitory computer-readable storage device of claim 15, wherein the first translation and the second translation are generated based on the abstract syntax tree.

17. The non-transitory computer-readable storage device of claim 16, wherein generating the first translation and the second translation includes processing each node of the abstract syntax tree using a visitor pattern.

18. The non-transitory computer-readable storage device of claim 13, wherein the operations further include:

identifying a second flag in the source code; and

identifying a unit test portion of the source code based on the second flag, the unit test portion including first unit tests in the first programming language, wherein generating the second translation includes generating second unit tests in the third programming language that correspond to the first unit tests.

19. The non-transitory computer-readable storage device of claim 13, wherein the operations further include performing static code analysis to determine whether the source code, the first translation, the second translation, or a combination thereof, includes an error.

20. The non-transitory computer-readable storage device of claim 19, wherein the operations further include outputting to a display indications of at least one error detected by the static code analysis.